Preventing landslides on roads and railways: a new risk-based approach

Lloyd, D.; Anderson, M. G.; Hussein, A. N.; Jamaludin, Amril Hadri; Wilkinson, Paul

doi:10.1680/cien.144.3.129.39903

Cited by 5 publications

(3 citation statements)

References 5 publications

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“…The climate of the study area is humid and annual mean precipitation is about 1957.5 mm, with an altitude around 283 meters above the sea level (Lateh et al, 2013). The soil texture is sandy, clay and loam (Lloyd et al, 2001 (Lateh et al, 2013).…”

Section: Study Areamentioning

confidence: 99%

Investigation of Root Distribution and Tensile Strength of Acacia mangium Willd (Fabaceae) in the Rainforest

Lateh¹,

Avani²,

Ghassem³

2014

GJBS

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The purpose of this study is to complement the existing body of knowledge on the root system of tropical plants and their contribution to slope stability. For this reason, four trees of Acacia mangium selected as randomly in rainforest along East-West Highway, Malaysia. Root area ratio (RAR) and tensile strength (Tr) data were collected and analyzed. RAR data were measured with the whole root system and Tr were measured by individual roots. The results showed that there is a power law equation between root diameter and Tr, with an average of 44.11 Mpa (in average root diameter of 0.9mm). There was a wide variation in the RAR in relation to soil depth. Generally, RAR reduced with the increasing soil depth. Similarly, additional cohesion by plant roots conducted by Tr and RAR. In conclusion, in order to assess soil reinforcement by vegetation roots, root distribution and tensile strength data with soil depth in different vegetation and sites is necessary.

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Section: Study Areamentioning

confidence: 99%

Investigation of Root Distribution and Tensile Strength of Acacia mangium Willd (Fabaceae) in the Rainforest

Lateh¹,

Avani²,

Ghassem³

2014

GJBS

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“…Although the modern civil engineering capabilities can rapidly repair the damages produced by landslides, the economic consequences of severing a major transport artery for even a short period can far outweigh the remedial costs [2].…”

Section: Introductionmentioning

confidence: 99%

The Oprăneşti landslide (Mehedinţi County) - evaluation, impact, solutions

Boengiu¹,

Simulescu²,

Mititelu-Ionuş³

et al. 2017

Proceedings of the 33rd Romanian Geomorphology Symposium

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Abstract-On May 24, 2016, in Husnicioara commune (Mehedinţi county) the county road 607A (Cerneţi-Prunişor), communal road 17A (which connects to Oprăneşti village) and the electricity transport network were affected by landslides. Because of the landslide and the associated processes there were damaged both roads, embankments and all other previously built elements for the slope's stabilization, taking off the water from rainfall, combat and mitigate erosion (cassettes, supporting walls, concrete ditches, tailboards etc.). The damage to the road network consisted in the destruction of some sectors from county road 607A on a length of 443 m and communal road 17A on a length of 131 m. The terrain reconfiguration which occurred because of the horizontal and vertical movements, locally destroyed the electricity transport network by collapse the supporting pillars of electric cables. Field measurements carried out from 2 to 16 June 2016 with GPS South S-82T were processed using GIS techniques and obtaining the numerical model of the landslide. After corroborating field analysis with the thematic maps resulted from the overlapping of the layers specific to the relief, lithology, land use/cover, it was established that the whole sectors affected by the landslide (DJ 607A and DC 17A) were destroyed, and that is impossible to restore them on the current emplacement. Taking into account the physical, geographical and territorial distribution of human settlements, for the reopening of DJ 607A there were identified and proposed as solutions two different routes with low risk and vulnerability to landslides.

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“…GIS facilitates the processing and display of relevant spatially distributed data (soil type, slope angle, water table elevation) in an integrated manner. Geotechnical models can be driven from such data sources and this then facilitates the establishment of landslide risk zonation maps (Xie et al 2004;Dai et al 2002;Lloyd et al 2001;Carrara 1995;Carrara et al 1999;Emmanual 2000). Such approaches provide potentially valuable information for generalised planning purposes.…”

Section: Introductionmentioning

confidence: 99%

Implementing low-cost landslide risk reduction: a pilot study in unplanned housing areas of the Caribbean

et al. 2008

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Landslides pose a serious physical and environmental threat to vulnerable communities living in areas of unplanned housing on steep slopes in the Caribbean. Some of these communities have, in the past, had to be relocated, at costs of millions of dollars, because of major slides triggered by tropical storm rainfall. Even so, evidence shows that:(1) risk reduction is a marginal activity; (2) there has been minimal uptake of hazard maps and vulnerability assessments and (3) there is little on-the-ground delivery of construction for risk reduction. This article directly addresses these issues by developing a low-cost approach to the identification of the potential pore pressure changes that trigger such slides we seek to address these three commentaries directly. A complex 45-60°slope site in St Lucia, West Indies was selected as a pilot for a modelling approach that uses numerical models (FLAC and CHASM) to verify the need for surface water management to effectively reduce landslide risk. Following the model confirmation, a series of drains were designed and constructed at the site. Post-construction evidence indicates the methodology to be sound, in that the site was stable in subsequent 1-in-1 to 1-in-4 year rainfall events. A critical feature of the approach is that it is community-based from data acquisition through to community members participating in construction.

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Preventing landslides on roads and railways: a new risk-based approach

Cited by 5 publications

References 5 publications

Investigation of Root Distribution and Tensile Strength of Acacia mangium Willd (Fabaceae) in the Rainforest

Investigation of Root Distribution and Tensile Strength of Acacia mangium Willd (Fabaceae) in the Rainforest

The Oprăneşti landslide (Mehedinţi County) - evaluation, impact, solutions

Implementing low-cost landslide risk reduction: a pilot study in unplanned housing areas of the Caribbean

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